Bluetooth Amplifier Board, ZK-HT21 2.1 Channel 160W x 2+220W Subwoofer Stereo Mini Audio Power Amplifier Module TDA7498E HiFi Chips,BT USB AUX Input DC 15-36V for DIY Home Speakers
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Availability:
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Arrives
Tuesday, Oct 28
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Color: Black3 ZK-HT21
Features
- 2.1 CH Subwoofer Audio Amplifier Board This ZK-HT21 power amplifier is 2.1channel, allows you to connect 2 passive speakers and drive a subwoofer, comes with Treble and Bass buttons, independent subwoofer volume adjustment buttons and 20-200Hz subwoofer frequency adjustment buttons, which is very friendly for audiophiles, you can adjust the Treble and Bass buttons, make the bass more shocking and the treble clearer, make the sound more layered
- 160W*2 + 220W High Power Output This HT21 audio amplifier has 160W*2 output power for left and right channel and 220W output power for subwoofer, it can drive two high-power speakers (30-200W, 4-8 ohms) and one subwoofer (30-220W), and the adapted power supply is DC15-36V/8A or above. Note: The higher the power supply voltage/current, the higher the output power, the lower the speaker resistance, the higher the output power, the adapted power supply should higher than the actual working power of the amplifier
- HIFI Stereo Audio Power Amplifier The ZK-HT21 power amplifier board built-in two TPA7498E power amplifier chips, TPA7498E is a high-performance class D power amplifier chip, can make thedevice maintain ultra-low distortion in the whole audio frequency band and show high-definition sound quality at the same time. The wiring around the chip is an window tin spraying design to increase the output power. 4 x Low noise preamplifiers 5532 group can improve the sound quality and volume, increase the gain
- Multiple Audio Input Modes This Mini amplifier receiver built-in Bluetooth 5.0, USB flash disk, USB sound card and 3.5mm AUX Input. Bluetooth 5.0 mode, faster transmission speed, lossless decoding, lower distortion rate, connection distance to audio equipment is 15m/49ft. Note: When using AUX mode, please confirm that the Bluetooth connection of this module has been disconnected
- With Protective Function This Bluetooth Amp module is designed with multiple protection mechanisms, include over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection, with case to protective it. Besides, There is a Long-life Ultra Silent Fan(locked rotor, no burning,no noise) above audio chips, for heat dissipation and protection of Bluetooth amplifier board
Description
Bluetooth Amplifier Board, ZK-HT21 2.1 Channel 160W x 2+220W Subwoofer Stereo Audio Power Amplifier Receiver Module TDA7498E HiFi Chips with Treble and Bass for Home Speakers
Voltage: 15 Volts (DC)
Manufacturer: DideaECO
Maximum Supply Voltage: 36 Volts (DC)
Minimum Supply Voltage: 15 Volts (DC)
Mounting Type: Freestanding
Package Dimensions : 6.42 x 5.67 x 2.05 inches; 13.12 ounces
Item model number : ZK-HT21
Date First Available : April 3, 2025
Manufacturer : DideaECO
Country of Origin : China
Best Sellers Rank: #38,085 in Electronics (See Top 100 in Electronics) #169 in Audio Component Amplifiers
#169 in Audio Component Amplifiers:
Customer Reviews: 4.5 4.5 out of 5 stars 7 ratings
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Oct 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Color: Black2 ZK-1002L
Genuinely impressed by this little tiny amp. I have two full tower speakers (Sony SS-MF550H) and they were running on a really large older amplifier that was just taking up too much space. I also was not getting enough use out of it since it did not have Bluetooth. This tiny amp is able to run both speakers without a problem. The Bluetooth connects very fast and is able to drive both speakers at a pretty loud volume. I am really impressed with the sound quality and bass. I can now have both of my speakers running with minimal space taking up and still enjoy good music. No more large amps for my. For the price, I can't tell you how good this is. I have been running the amp at full power using an old transformer that has 12v output. Its not even getting warm. I was worried I might have to figure out how to keep it cool. I can't say enough nice things about this minimalist style of amplifier. Great product!!
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Reviewed in the United States on April 23, 2025 by AmznCust
Color: Black3 ZK-HT21
My only issue with this item and the reason I'm not giving it more than 3 stars is the fact that is does not include a power supply of any kind. They do not make this clear at all in the item's description. Once I bought this and realized it didn't include a power supply, I felt like I had already sunk too much money into it, so I had to buy another $30 power supply. For some of you this won't make a difference since you'll have a power supply laying around that works just fine, however I did not. Suddenly the $30 asking price doesn't seem so nice once you include another $30 power cord. However. other than not including a power supply and them lying by omission about the fact that one isn't included. it works fine. Just don't expect to have a fully functioning amp at whatever the listing price is without spending double that for a power cord.
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Reviewed in the United States on June 16, 2025 by Caleb Justin
Color: Black1 2PCS ZK-1001B
I've used a couple sets of these to convert older standalone speakers to Bluetooth powered speakers, sort of as a novelty. They work fine, and the installation is pretty easy since all you have to do is drill a couple holes and do a bit of wiring. Power is pretty good, they're using a TPA3116 amplifier chip, which supports a wide variety of supply voltages up to 24V, and of course the maximum available output power varies with the supply voltage. The IC is indeed capable of 100W output at 24V, though I'd like to see a little more robust heatsink if I were going to run it at that level for any length of time. Build quality is very nice, with attractive black-solder-mask PCBs and even a little "cover" PCB to make the unit into a compact box, albeit an open-sided one (the better for cooling...) I deployed one set of these into a pair of old Acoustic Research clear plastic speakers in which the built-in electronics were dead, and with a little artful wiring, the result was a very nice looking package with great sound. These are using a better-than-average Bluetooth chip as well, which supports TWS pairing. You can connect two units via Bluetooth, and the pair will act as one, stereo, Bluetooth speaker. Nice. All the controls are done via the single knob/button, you have to remember a few combinations of clicks and long-presses but it's pretty easy to use, and is an economical way to resurrect and repurpose older speakers into something new and unique.
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Reviewed in the United States on April 19, 2025 by Vile Lizard